she's only been mentioned in passing both in nier replicant and nier automata, which isn't enough proof for some people that drakengard universe and nier universe are connected (i know the nier replicant drama cds bridges this gap but isn't readily available to players outside jp)

with her cameo in the anime, it solidifies and, in a way, officially ties up drakengard and nier games together. accord has been there all along, fulfilling her duties in all branches of replicant and automata endings. most especially, the anime's ending